1.   Her threat to leave the job had been an idle one, and whatever ill feeling there had been between her and Jenny must have been papered over.

2.   Even so, the threat of renewed civil war is not an idle one, according to United Nations officials.

3.   It now appears that the Meretz threat was an idle one and it has not been repeated.

4.   That warning has not been an idle one.

5.   The interest in African-American culture is not an idle one.

6.   The question is not an idle one.

7.   The stroll was an idle one.

8.   The threat to the federal court system was not an idle one, according to the memo.

9.   Their threat is not an idle one.

10.   Their threat was not an idle one.